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Engine Parts & Tuning Hardware

Unleash Your Engine's Power: Performance Parts & Accessories

At Optimiz Access, we offer a vast lineup of engine performance parts and accessories to boost the output of your sports vehicle or premium automobile. Optimize your engine for extreme performance and enjoy an exhilarating driving experience on both road and track.

Key benefits of engine tuning: substantial horsepower and torque gains for rapid acceleration, sharper throttle response, enhanced mechanical reliability using high-strength components, and tailored custom tuning suited to all engines.

Essential Products to Maximize Engine Performance

Discover all our precision-engineered components designed to increase efficiency and durability in your engine block:

  • Cold Air Intakes & Air Filtration – Performance sports filters and carbon intake systems for maximum air filling.
  • Intercoolers & Charge Coolers – Efficient intake air cooling to sustain consistent power output under heavy loads.
  • Forged Pistons & Connecting Rods – Heavy-duty internal components built to withstand extreme temperatures and boost pressures.
  • Turbos & Superchargers – Forced induction upgrades delivering significant power increases.
  • Ignition & Servicing – Competition spark plugs, high-output ignition coils, and high-performance oil filters.

Industry-Leading Benchmark Brands

We stock top tuning and motorsport manufacturers: Wagner Tuning, Forge Motorsport, Magnecor, Green Filter, BMC Filter, NGK, Vibra Technics, and Powerflex. We also supply OEM factory parts to ensure meticulous engine maintenance.

Why you should Choose Optimiz Access for Your Engine Upgrades

Since 2010, Optimiz Access has specialized in selecting top-tier engine components for the custom upgrading and maintenance of sports vehicles. Located in northern France (Hauts-de-France) — near Lille, Valenciennes, Cambrai, Arras, Seclin, Douai, and Saint-Quentin —, our expert technicians guide your hardware selection and provide professional installation in our workshop. We ensure strict quality control along with fast worldwide shipping.

Unleash Your Engine's Full Potential Today

Give your car the raw power and sharp response it deserves. Trust the expertise of Optimiz Access, select your engine performance parts today, and benefit from our fast dispatch.

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  • Categories: Support moteur
Kit Joint Spy Arbres à Cames + Vis de Poulie Clio 2 RS
      Kit Joint Spy Arbres à Cames + Vis de Poulie Kit indispensable pour proceder au changement de la distribution sur Clio 2 RS
      €54.58Price
      Kit Joint Spy Arbres à Cames + Vis de Poulie Clio 2 RS
          Kit Joint Spy Arbres à Cames + Vis de Poulie Kit indispensable pour proceder au changement de la distribution sur Clio 2 RS
          €54.58Price
          En Stock
          €20.80 Price
          En Stock
          €20.80 Price
          Exhaust Manifold Gasket | Renault Twingo 2 RS / R2
              Avoid exhaust gas leaks and loss of sealing at the exhaust manifold of your Renault Twingo 2 RS . This exhaust manifold gasket is designed for the 1.6 16V K4M engine and is suitable for sporting applications including the...
              €20.80Price
              Exhaust Manifold Gasket | Renault Twingo 2 RS / R2
                  Avoid exhaust gas leaks and loss of sealing at the exhaust manifold of your Renault Twingo 2 RS . This exhaust manifold gasket is designed for the 1.6 16V K4M engine and is suitable for sporting applications including the...
                  €20.80Price
                  En Stock
                  €54.41 Price
                  En Stock
                  €54.41 Price
                  Cache bouchons arbres à cames moteur F4R
                      Cache bouchons arbres à cames moteur F4R Kit de 2 plaques de fermeture moteur 7711155481
                      €54.41Price
                      Cache bouchons arbres à cames moteur F4R
                          Cache bouchons arbres à cames moteur F4R Kit de 2 plaques de fermeture moteur 7711155481
                          €54.41Price
                          En Stock
                          €15.42 Price
                          En Stock
                          €15.42 Price
                          Huile moteur Total quartz racing 10w60
                              Huile moteur Total Quartz Racing 10w60 Produit préconisé par Renault sport pour la Mégane N4 Référence: 7711166390 Vendu en bidon de 1L
                              €15.42Price
                              Huile moteur Total quartz racing 10w60
                                  Huile moteur Total Quartz Racing 10w60 Produit préconisé par Renault sport pour la Mégane N4 Référence: 7711166390 Vendu en bidon de 1L
                                  €15.42Price
                                  En Stock
                                  €43.02 Price
                                  En Stock
                                  €43.02 Price
                                  Joint Spy Vilebrequin coté distribution
                                      The original Renault crankshaft oil seal, timing side is an essential part to ensure crankshaft sealing in the engines of your Renault Clio 2 RS , Clio 2 GR N , Clio 2 X65 Cup , Clio 3 RS , Clio R3 , Clio 3 X85 Cup , Mégane 2 RS , Mégane 3 RS , and...
                                      €43.02Price
                                      Joint Spy Vilebrequin coté distribution
                                          The original Renault crankshaft oil seal, timing side is an essential part to ensure crankshaft sealing in the engines of your Renault Clio 2 RS , Clio 2 GR N , Clio 2 X65 Cup , Clio 3 RS , Clio R3 , Clio 3 X85 Cup , Mégane 2 RS , Mégane 3 RS , and...
                                          €43.02Price
                                          En Stock
                                          €81.58 Price
                                          En Stock
                                          €81.58 Price
                                          Flexible de carburant Té vers rampe Twingo R1 - Clio R3 Max
                                              Do not let a preventable engine failure ruin your race weekend. This high-pressure fuel hose , an authentic Renault Sport component (references 7711160195 / 7711162420 ), is the critical link between the T-connector and the fuel injector rail . Specifically engineered for Twingo R1,...
                                              €81.58Price
                                              Flexible de carburant Té vers rampe Twingo R1 - Clio R3 Max
                                                  Do not let a preventable engine failure ruin your race weekend. This high-pressure fuel hose , an authentic Renault Sport component (references 7711160195 / 7711162420 ), is the critical link between the T-connector and the fuel injector rail . Specifically engineered for Twingo R1,...
                                                  €81.58Price
                                                  En Stock
                                                  €129.34 Price
                                                  En Stock
                                                  €129.34 Price
                                                  Carter de protection Courroie de distribution Clio RS
                                                      Pièce empêchant le passage de la courroie d'accessoires dans la distribution Compatible avec Clio 2 RS, Clio 3 RS La mise en place sur Clio 2 nécessite une legere découpe du carter en plastique  Fourni sans les vis, veuillez consulter les produits associés en bas de page
                                                      €129.34Price
                                                      Carter de protection Courroie de distribution Clio RS
                                                          Pièce empêchant le passage de la courroie d'accessoires dans la distribution Compatible avec Clio 2 RS, Clio 3 RS La mise en place sur Clio 2 nécessite une legere découpe du carter en plastique  Fourni sans les vis, veuillez consulter les produits associés en bas de page
                                                          €129.34Price
                                                          Joint carter inférieur huile moteur Twingo RS y compris R1 et R2Joint carter inférieur huile moteur Twingo RS y compris R1 et R2
                                                              Joint carter inférieur huile moteur Twingo RS y compris R1 et R2
                                                              €95.21Price
                                                              Joint carter inférieur huile moteur Twingo RS y compris R1 et R2Joint carter inférieur huile moteur Twingo RS y compris R1 et R2
                                                                  Joint carter inférieur huile moteur Twingo RS y compris R1 et R2
                                                                  €95.21Price
                                                                  En Stock
                                                                  €66.99 Price
                                                                  En Stock
                                                                  €66.99 Price
                                                                  Injecteur Clio 3 RS et X85 Cup
                                                                      The original Renault injector is an essential part to ensure precise fuel injection in the engine of your Renault Clio 3 RS and Renault Clio 3 X85 Cup . It ensures optimal combustion and reliable engine performance.
                                                                      €66.99Price
                                                                      Injecteur Clio 3 RS et X85 Cup
                                                                          The original Renault injector is an essential part to ensure precise fuel injection in the engine of your Renault Clio 3 RS and Renault Clio 3 X85 Cup . It ensures optimal combustion and reliable engine performance.
                                                                          €66.99Price
                                                                          En Stock
                                                                          €139.18 €231.97 Regular price -40% off Price
                                                                          En Stock
                                                                          €139.18 €231.97 Regular price -40% off Price
                                                                          Kit Distribution Clio 1.8 16S et WilliamsKit Distribution Clio 1.8 16S et Williams
                                                                              Kit distribution Renault pour Clio 1.8 16S Le kit contient la courroie et les 2 galets En cas de doute nous consulter.
                                                                              €139.18€231.97Regular price-40% offPrice
                                                                              Kit Distribution Clio 1.8 16S et WilliamsKit Distribution Clio 1.8 16S et Williams
                                                                                  Kit distribution Renault pour Clio 1.8 16S Le kit contient la courroie et les 2 galets En cas de doute nous consulter.
                                                                                  €139.18€231.97Regular price-40% offPrice
                                                                                  Goodridge braided stainless steel tank-to-Tee fuel line part 7711160196 for Renault Twingo R1 R2 & Clio R3.
                                                                                      Do not risk a sudden drop in fuel pressure during a crucial rally stage, a highly inflammable fuel leak underneath your chassis, or an immediate technical disqualification during safety scrutineering. The genuine Goodridge fuel tank-to-Tee piece braided line , carrying the...
                                                                                      €119.40Price
                                                                                      Goodridge braided stainless steel tank-to-Tee fuel line part 7711160196 for Renault Twingo R1 R2 & Clio R3.
                                                                                          Do not risk a sudden drop in fuel pressure during a crucial rally stage, a highly inflammable fuel leak underneath your chassis, or an immediate technical disqualification during safety scrutineering. The genuine Goodridge fuel tank-to-Tee piece braided line , carrying the...
                                                                                          €119.40Price
                                                                                          En Stock
                                                                                          €224.35 Price
                                                                                          En Stock
                                                                                          €224.35 Price
                                                                                          Kit Joint Refection moteur Origine Clio 2 RS
                                                                                              Ensemble de joints nécéssaire au bon remontage du moteur de Clio 2 RS Véritable produit d'origine La photo ne comporte pas les joints spy d'arbres à cames mais ceux ci sont bien fournis
                                                                                              €224.35Price
                                                                                              Kit Joint Refection moteur Origine Clio 2 RS
                                                                                                  Ensemble de joints nécéssaire au bon remontage du moteur de Clio 2 RS Véritable produit d'origine La photo ne comporte pas les joints spy d'arbres à cames mais ceux ci sont bien fournis
                                                                                                  €224.35Price
                                                                                                  En Stock
                                                                                                  €12.00 Price
                                                                                                  En Stock
                                                                                                  €12.00 Price
                                                                                                  Bidon de 2 L ELF 700 ST 10w40Bidon de 2 L ELF 700 ST 10w40
                                                                                                      Bidon de 2L de ELF 700 ST 10W40 Huile Préconisé par Renault l'entretien de la gamme RS comprenant Clio 16S et Williams, Twingo RS, Clio RS, Megane RS..
                                                                                                      €12.00Price
                                                                                                      Bidon de 2 L ELF 700 ST 10w40Bidon de 2 L ELF 700 ST 10w40
                                                                                                          Bidon de 2L de ELF 700 ST 10W40 Huile Préconisé par Renault l'entretien de la gamme RS comprenant Clio 16S et Williams, Twingo RS, Clio RS, Megane RS..
                                                                                                          €12.00Price
                                                                                                          Renault Sport camshaft alignment tool for F4R, F4Rt, and K4M engines, SKU: 1496.Camshaft Timing Tool | Renault Clio, Megane, Twingo RS
                                                                                                              Protect your engine block against catastrophic mechanical failure during structural timing belt overhauls with this professional RENAULT Camshaft Timing Tool . Specifically engineered to slot into the rear alignment grooves of Renault Sport twin-cam engines (covering F4R,...
                                                                                                              €96.37Price
                                                                                                              Renault Sport camshaft alignment tool for F4R, F4Rt, and K4M engines, SKU: 1496.Camshaft Timing Tool | Renault Clio, Megane, Twingo RS
                                                                                                                  Protect your engine block against catastrophic mechanical failure during structural timing belt overhauls with this professional RENAULT Camshaft Timing Tool . Specifically engineered to slot into the rear alignment grooves of Renault Sport twin-cam engines (covering F4R,...
                                                                                                                  €96.37Price
                                                                                                                  Fuel Pump Locking Ring and Seal Kit - Renault Sport Range
                                                                                                                      Ensure a leak-free fuel system with this genuine Renault fuel pump locking ring and seal kit . Essential for any intervention on the fuel sender unit, this kit prevents leaks and persistent fuel odors inside your sports vehicle's cabin. Includes the locking nut (ring) and the...
                                                                                                                      €55.88Price
                                                                                                                      Fuel Pump Locking Ring and Seal Kit - Renault Sport Range
                                                                                                                          Ensure a leak-free fuel system with this genuine Renault fuel pump locking ring and seal kit . Essential for any intervention on the fuel sender unit, this kit prevents leaks and persistent fuel odors inside your sports vehicle's cabin. Includes the locking nut (ring) and the...
                                                                                                                          €55.88Price
                                                                                                                          En Stock
                                                                                                                          €37.52 Price
                                                                                                                          En Stock
                                                                                                                          €37.52 Price
                                                                                                                          Raccord 90° de rampe d'injection Clio Gr N
                                                                                                                              Secure your fuel system with this official RENAULT SPORT 90° fuel rail fitting . A key component from the competition catalog for the Renault Clio 2 RS Group N , this fitting ensures constant flow and absolute sealing under pressure. Do not let a standard component compromise the safety of your racing setup or your track day...
                                                                                                                              €37.52Price
                                                                                                                              Raccord 90° de rampe d'injection Clio Gr N
                                                                                                                                  Secure your fuel system with this official RENAULT SPORT 90° fuel rail fitting . A key component from the competition catalog for the Renault Clio 2 RS Group N , this fitting ensures constant flow and absolute sealing under pressure. Do not let a standard component compromise the safety of your racing setup or your track day...
                                                                                                                                  €37.52Price
                                                                                                                                  Joint répartiteur admission ( plenum ) Twingo 2 RS, R1 et R2
                                                                                                                                      Joint répartiteur admission Twingo RS R1 et R2
                                                                                                                                      €26.36Price
                                                                                                                                      Joint répartiteur admission ( plenum ) Twingo 2 RS, R1 et R2
                                                                                                                                          Joint répartiteur admission Twingo RS R1 et R2
                                                                                                                                          €26.36Price
                                                                                                                                          Bidon de 5L de ELF HTX Collection 20w50ELF HTX Collection 20w50 5L - Porsche & Alpine Classic
                                                                                                                                              Protect the original powertrain of your automotive icon with ELF HTX Collection 20w50 mineral engine oil in a 5L jug . Specifically formulated for vintage mechanics and classic historic engines, this high-end formula guarantees consistent oil pressure and unmatched...
                                                                                                                                              €63.62Price
                                                                                                                                              Bidon de 5L de ELF HTX Collection 20w50ELF HTX Collection 20w50 5L - Porsche & Alpine Classic
                                                                                                                                                  Protect the original powertrain of your automotive icon with ELF HTX Collection 20w50 mineral engine oil in a 5L jug . Specifically formulated for vintage mechanics and classic historic engines, this high-end formula guarantees consistent oil pressure and unmatched...
                                                                                                                                                  €63.62Price
                                                                                                                                                  Pige de Calage Vilebrequin F4R Clio RS Megane RS
                                                                                                                                                      Prevent catastrophic engine failure during your timing belt replacement with this professional-grade Crankshaft Timing Pin F4R Clio RS Megane RS . Engineered specifically to match the official factory blueprints of Renault Sport power units, this high-tensile steel tool...
                                                                                                                                                      €41.40Price
                                                                                                                                                      Pige de Calage Vilebrequin F4R Clio RS Megane RS
                                                                                                                                                          Prevent catastrophic engine failure during your timing belt replacement with this professional-grade Crankshaft Timing Pin F4R Clio RS Megane RS . Engineered specifically to match the official factory blueprints of Renault Sport power units, this high-tensile steel tool...
                                                                                                                                                          €41.40Price
                                                                                                                                                          Pompe essence modifiée Clio Gr NModified Fuel Pump DASH Fitting Renault Sport for Renault Clio 2 Gr N (7711129520)
                                                                                                                                                            • Pack
                                                                                                                                                            Do not take the risk of seeing the performance of your Renault Clio 2 Group N drop sharply. Without a stable and optimal fuel supply, you lose your advantage on the track. This modified fuel pump (Reference 7711129520 ) is the official Renault Sport part essential for maintaining...
                                                                                                                                                            €269.74Price
                                                                                                                                                            Pompe essence modifiée Clio Gr NModified Fuel Pump DASH Fitting Renault Sport for Renault Clio 2 Gr N (7711129520)
                                                                                                                                                              • Pack
                                                                                                                                                              Do not take the risk of seeing the performance of your Renault Clio 2 Group N drop sharply. Without a stable and optimal fuel supply, you lose your advantage on the track. This modified fuel pump (Reference 7711129520 ) is the official Renault Sport part essential for maintaining...
                                                                                                                                                              €269.74Price
                                                                                                                                                              En Stock
                                                                                                                                                              €28.80 Price
                                                                                                                                                              En Stock
                                                                                                                                                              €28.80 Price
                                                                                                                                                              Courroie accessoire Clio Gr N ou Rs avec montage type Ragnotti
                                                                                                                                                                  Renault Clio R3 Max Accessory Belt (128mm Pulley) High-performance accessory belt for Renault Clio R3 Max with 128mm crankshaft pulley. Optimize your race Clio's transmission. Discover complementary products at the bottom of the page.
                                                                                                                                                                  €28.80Price
                                                                                                                                                                  Courroie accessoire Clio Gr N ou Rs avec montage type Ragnotti
                                                                                                                                                                      Renault Clio R3 Max Accessory Belt (128mm Pulley) High-performance accessory belt for Renault Clio R3 Max with 128mm crankshaft pulley. Optimize your race Clio's transmission. Discover complementary products at the bottom of the page.
                                                                                                                                                                      €28.80Price
                                                                                                                                                                      Joint de vidangeDrain Plug Seal Clio 4 RS / Mégane RS / Alpine A110
                                                                                                                                                                          Renault Sport and Alpine Engine Drain Plug Seal The engine drain plug seal , reference 1102601M02 , is a sealing component used at the engine oil drain...
                                                                                                                                                                          €2.92Price
                                                                                                                                                                          Joint de vidangeDrain Plug Seal Clio 4 RS / Mégane RS / Alpine A110
                                                                                                                                                                              Renault Sport and Alpine Engine Drain Plug Seal The engine drain plug seal , reference 1102601M02 , is a sealing component used at the engine oil drain...
                                                                                                                                                                              €2.92Price
                                                                                                                                                                              Dispo selon configuration
                                                                                                                                                                              €6.00 Price
                                                                                                                                                                              Dispo selon configuration
                                                                                                                                                                              €6.00 Price
                                                                                                                                                                              Tuyau de dépressionTuyau de dépression
                                                                                                                                                                                  Tuyau de depression de diamètre 4mm. Sert généralement pour l'installation de Dump Valve. Prix au metre
                                                                                                                                                                                  €6.00Price
                                                                                                                                                                                  Tuyau de dépressionTuyau de dépression
                                                                                                                                                                                      Tuyau de depression de diamètre 4mm. Sert généralement pour l'installation de Dump Valve. Prix au metre
                                                                                                                                                                                      €6.00Price
                                                                                                                                                                                      En Stock
                                                                                                                                                                                      €112.69 Price
                                                                                                                                                                                      En Stock
                                                                                                                                                                                      €112.69 Price
                                                                                                                                                                                      Vis de Culasse (x10)
                                                                                                                                                                                          Ensemble de vis de culasse pour Clio 3 RS, Megane 2 RS, Megane 3 RS, Clio 2 RS et Megane 2 RS Véritable produit d'origine
                                                                                                                                                                                          €112.69Price
                                                                                                                                                                                          Vis de Culasse (x10)
                                                                                                                                                                                              Ensemble de vis de culasse pour Clio 3 RS, Megane 2 RS, Megane 3 RS, Clio 2 RS et Megane 2 RS Véritable produit d'origine
                                                                                                                                                                                              €112.69Price
                                                                                                                                                                                              En Stock
                                                                                                                                                                                              €22.74 Price
                                                                                                                                                                                              En Stock
                                                                                                                                                                                              €22.74 Price
                                                                                                                                                                                              Renault GLACEOL RX Type D Coolant 5LRenault GLACEOL RX Type D Coolant 5L
                                                                                                                                                                                                  Renault Type D Coolant – 5 L The Renault GLACEOL RX Type D coolant in a 5-litre container is an engine cooling fluid designed for compatible Renault vehicles. It helps regulate engine...
                                                                                                                                                                                                  €22.74Price
                                                                                                                                                                                                  Renault GLACEOL RX Type D Coolant 5LRenault GLACEOL RX Type D Coolant 5L
                                                                                                                                                                                                      Renault Type D Coolant – 5 L The Renault GLACEOL RX Type D coolant in a 5-litre container is an engine cooling fluid designed for compatible Renault vehicles. It helps regulate engine...
                                                                                                                                                                                                      €22.74Price